html,body{
    height: 100%;
}
body{
    background: url('../img/login-background.jpg') no-repeat center;
}
.login{
    width: 300px;
    height: 200px;
    border-radius: 5px;
    background-color: #fff;
    margin: 200px auto;
}
p{
    height: 40px;
    text-align: center;
    line-height: 40px;
}
input,button{
    width: 240px;
    height: 30px;
    border-radius: 5px;
    padding: 0 10px;
    border: 1px solid gainsboro;
    margin: 5px 30px;
}
button{
    height: 30px;
    background-color: #1890ff;
    color: #fff;
    padding: 0;
    line-height: 30px;
}
a{
    display: inline-block;
    width: 240px;
    font-size: 12px;
    text-align: right;
    margin: 0 30px;
}